Christian Craig

https://vkswtips.blogspot.com/2012/01/android-how-to-call-java-activity-using.html

http://j796160836.pixnet.net/blog/post/31583827-%5Bandroid%5D-%E5%AE%89%E8%A3%9Dndk%E8%88%87%E4%BD%BF%E7%94%A8jni%E5%91%BC%E5%8F%AB%E7%B3%BB%E7%B5%B1%E5%BA%95%E5%B1%A4native%E7%9A%84c-

http://blog.csdn.net/xyang81/article/category/2759987

http://wiki.jikexueyuan.com/project/jni-ndk-developer-guide/overview.html

https://github.com/Apress/pro-android-c-w-ndk

e-book:

Pro Android C with the NDK